Muslim pilgrims pray on Mount Arafat in hajj climax

Over 1.5 million Muslim pilgrims will pray on Mount Arafat on Saturday, marking the climax of the annual hajj pilgrimage in Saudi Arabia. Worshippers will endure soaring temperatures of 43°C (109.4°F) at the rocky hill near Mecca, where Prophet Muhammad gave his last sermon. The grueling outdoor hajj is increasingly impacted by climate change, but remains an important religious duty and economic windfall for Saudi Arabia.